Writing instrument



FIG. 1 is a front/left/top perspective view of the writing instrument, wherein the front/right/top perspective view would be a mirror image thereof;

FIG. 2 is a left side view thereof, wherein the right side view would be a mirror image thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a rear/right/top perspective view thereof, wherein the rear/left/top perspective view would be a mirror image thereof;

FIG. 5 is a rear/right/top perspective view thereof (taken at a different angle than FIG. 4), wherein the rear/left/top perspective view would be a mirror image thereof; and

FIG. 6 is a top/rear perspective view thereof;

FIG. 7 is a top/front perspective view thereof.

FIG. 8 is a front/left/top perspective view thereof, with the cap removed, wherein the front/right/top perspective view would be a mirror image thereof;

FIG. 9 is a left side view thereof, wherein the right side view would be a mirror image thereof;

FIG. 10 is a top view thereof; and,

FIG. 11 is a rear/right/top perspective view thereof, wherein the rear/left/top perspective view would be a mirror image thereof.

The broken lines showing the inside of the cap and the writing tip housing in FIGS. 8-11 are included for the purpose of illustrating portions of the writing instrument that form no part of the claimed design. 

I claim the ornamental design for a writing instrument, as shown and described. 